Oneirogen, from the Greek oneiros meaning "dream

Dream

Dreams are successions of images, ideas, emotions, and sensations that occur involuntarily in the mind during certain stages of sleep. The content and purpose of dreams are not definitively understood, though they have been a topic of scientific speculation, philosophical intrigue and religious...

" and gen "to create," describes that which produces a dream-like state of consciousness

Consciousness

Consciousness is a term that refers to the relationship between the mind and the world with which it interacts. It has been defined as: subjectivity, awareness, the ability to experience or to feel, wakefulness, having a sense of selfhood, and the executive control system of the mind...

. Usually used in reference to drugs such as Artemisia vulgaris

Artemisia vulgaris

Artemisia vulgaris is one of several species in the genus Artemisia which have common names that include the word mugwort. This species is also occasionally known as Felon Herb, Chrysanthemum Weed, Wild Wormwood, Old uncle Henry, Sailor's Tobacco, Naughty Man, Old Man or St...

 ("Mugwort"), Calea zacatechichi

Calea zacatechichi

Calea zacatechichi, also known as Dream Herb, Leaf of God, and Bitter Grass, is a plant used by the indigenous Chontal of the Mexican state of Oaxaca for oneiromancy The plant naturally occurs from southern Mexico to northern Costa Rica...

 (the "dream herb"), Entada rheedii

Entada rheedii

Entada rheedii, commonly known as the African Dream Herb or Snuff Box Sea Bean, is a large woody liana or climber. It is often spelled as Entada rheedei, though the first and legitimate name was published as E. rheedii...

 ("African dream herb"), Silene capensis

Silene capensis

Silene capensis is a plant native to the Eastern Cape of South Africa, where it is regarded by the Xhosa people as a sacred plant...

 ("African dream root"), Tabernanthe iboga

Iboga

Tabernanthe iboga or Iboga is a perennial rainforest shrub and hallucinogen, native to western Central Africa. Iboga stimulates the central nervous system when taken in small doses and induces visions in larger doses. In parts of Africa where the plant grows the bark of the root is chewed for...

, and Salvia Divinorum

Salvia divinorum

Salvia divinorum is a psychoactive plant which can induce dissociative effects and is a potent producer of "visions" and other hallucinatory experiences...

, etc. May also be used to describe anything that produces similar changes in consciousness.